Maginn contributed to Patrick, N.Y. senator

The state Republican Party’s new chairman, Robert A. Maginn Jr., gave Governor Deval Patrick, a Democrat, $500, the maximum allowable under state law, during Patrick’s reelection campaign last year.

It was not the first contribution to a Democrat made by Maginn, the chief executive of the software company Jenzabar Inc. In 2009, he gave $2,400 to US Senator Charles E. Schumer, Democrat of New York, a frequent target of conservatives.